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Concordance of PIK3CA mutation genotypes between endoscopic biopsy and surgically resected specimens in cases exhibiting a PIK3CA mutation in both specimen types
| Surgically resected specimens (reference method) | ||||||
|---|---|---|---|---|---|---|
| E542K | E545K | E546Q | H1047R | H1047L | ||
| Endoscopic biopsy specimens (trial method) | E542K | 1 | 0 | 0 | 0 | 0 |
| E545K | 0 | 3 | 0 | 0 | 0 | |
| E546Q | 0 | 0 | 0 | 0 | 0 | |
| H1047R | 0 | 0 | 0 | 5 | 0 | |
| H1047L | 0 | 0 | 0 | 0 | 1 | |
